Related Clips

1369

1960s

9577_naked_weights

skinny naked man lifting weights in front of yellow curtain, looks like…
1213

1960s

8570_sound_waves

How we hear sound waves
1187

1950s

7355_more_sound_waves

how sound waves are received by ear.
1102

1980s

7250_urethra

urethra through spectroscope